Had an issue today where we had to migrate a client as our ITSP migrated the client to a different SBC platforms. After re-pointing, the SIP Trunk was failing… Read more “Incorrect SIP Realm – CUBE Not Responding to 401 Unauthorized”
Prime Collaboration Provisioning Business Rules
Prime Collaboration Provision has an excellent centralized management of a set of “Business Rules” that really identify a level of system configuration that can be applied to… Read more “Prime Collaboration Provisioning Business Rules”
Troubleshooting DTMF from ISDN PSTN
Sometimes we unfortunately still have legacy requirements to support ISDN that still need to upgrade to SIP Trunking. DTMF and even fax tones can be a pain… Read more “Troubleshooting DTMF from ISDN PSTN”
Regex – Conditionally Modifying User Data to “Title Case” for Phone Labels
Sadly a lot of UC is well, about those pesky end users. This generally involves user data of some sort, and inevitably this is bad data. Formatting… Read more “Regex – Conditionally Modifying User Data to “Title Case” for Phone Labels”
ExpressWay DMZ and NAT Design Considerations
There are a number of excellent documents on the subject of ExpressWay traversal DMZ design and handling NAT. I must however commend Cisco on the updates on… Read more “ExpressWay DMZ and NAT Design Considerations”
Prime Collaboration Provisioning – Aborting Failed Orders
If you’ve worked with Prime Collaboration Provisioning, you will be accustomed to this ongoing headache when using Batch Provisioning: The queuing architecture is atrocious, and is very… Read more “Prime Collaboration Provisioning – Aborting Failed Orders”
Implementing Loop Prevention on CUBE
We work quite a lot with a single ITSP in our smaller deployments, but keep hitting a problem with number porting. We’re repeatedly facing a problem whereby… Read more “Implementing Loop Prevention on CUBE”
Unity Call Extended for Recording Fails
While implementing an Auto Attendent today, we faced a challenge as the client did not want to pay for professional recordings, and needed to implement quickly. If… Read more “Unity Call Extended for Recording Fails”
Lua Script Solves Call Forward Masking
Had to implement an Auto Attendant in Unity today. The client had a requirement to send after-hours calls out to the PSTN, but had to be routed… Read more “Lua Script Solves Call Forward Masking”
SIP SRST Dialling Fails Due to Header Addressing – CSCur95578
Haven’t been able to post in a while as my current project is keeping me very busy! As the core multi-cluster deployment is now complete, we’ve moved on… Read more “SIP SRST Dialling Fails Due to Header Addressing – CSCur95578”
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